Duplicate of Duplicate of 17 18 20 Evolution and History of Life 2024 3rd Block

Earth’s early atmosphere was made of mostly

Why is the kingdom “Protista” NOT considered a clade under evolutionary classification?

The U.S. has two skunk species. One species mates in the Fall, the other species mates in Spring. This is an example of:

Homologous structures, like those in the diagram, provide evidence of

What are the genotypic frequencies in a population of mice having 400 black (B_) mice and 80 brown (bb) mice?

All the genes within a population of organisms is called a ______________________

The wing of an insect and the wing of an eagle are examples of

Two separate frog species live in a pond and have different mating songs and therefore do NOT interbreed

Before Darwin, Lamark's evolutionary hypotheses stated that

Choose three: The sources of genetic variation include

Embryology is evidence that vertebrates evolved from a(n) ______ ancestor.

Embryos of fish, reptiles, birds and humans show we all have ______ at the beginning of life.

To be useful as an index fossil, a species must have existed for a

One scientific hypothesis about the origin of life holds that

What were the two animals that Darwin studied the most in the Galapagos Islands?

Why is the hagfish clade considered the outgroup?

Which is NOT true about extinction?

What clade is the closest ancestor of the chimpanzee?

Gradualism is a pattern of evolution in which

The ability for an organism to survive conditions and reproduce many offspring is called ___________________.

According to Darwin, the individuals that tend to survive are those that have....

Widow's peak, tongue-rolling, hitchhiker's thumb, are examples of

A group of red & yellow ladybugs leave the population, fly to an island, start a new population on the island. This is:

In the tortoises, what process produced the three different neck lengths (short, medium, long) that Darwin observed?

Darwin's Theory of Evolution suggests that.....

Select THREE answers: A short-neck giraffe living among long-neck giraffes dies. Why?

Humans have produced different dog breeds, larger chickens, faster horses, and large ears of corn which are examples of:

In contrast to Linnaean taxonomy, cladistic analysis considers which kind of traits?

Which of the following clades is most likely to survive a series of catastrophic events?

Sexual reproduction contributes to genetic diversity by allowing

A plant evolves a high level of poison and the insect that eats it evolves a defense. This is

The finches on the Galapagos Islands have some similar physical characteristics other than their beaks because

Of the choices: A population in genetic equilibrium will meet the following conditions according to Hardy-Weinberg

Choose TWO answers: According to Darwin's Theory of Evolution,

Darwin's mechanism for explaining evolution was called?

A single-gene trait for mouse fur black versus brown is 80% versus 20%. This is an example of

When the allele frequencies of a population drastically change by chance, it's referred to as

Natural selection in which the average phenotypes are selected for and the extremes are selected against is known as

The endosymbiotic theory says that eukaryotic cells

The grouping of organisms based on their common descent is called

How would you give an age of a sample of rock that you think is one of the oldest on Earth?

According to the cladogram, which is TRUE?

Most fossils are found in

The Australian and American flying squirrels are very similar but distantly related. This is most likely due to

What does a cladistic analysis show about organisms?

When allele frequencies don't change and no evolution is occurring, this is known as

When few individuals survive after a disaster leaving only a fraction of the original phenotypes, this is called a

Which of the following statements must be true for a clade to survive?

When lions prey on a herd of Wildebeest, some are killed & some escape due to being faster. This is an example of

According to the Hardy-Weinberg, a condition for a population to remain in genetic equilibrium includes

What cell structures contain DNA that can be used to determine evolutionary relationships?

The length of time required for half of radioactive atoms to decay is

Based on the time in history, Darwin's concept of natural selection could NOT have been influenced by

Select TWO answers: Which of the following is true about ADAPTATIONS?

Which is TRUE about the Miller and Urey experiments?

The divisions of the Geologic Time Scale

Skin pigmentation, height in humans or variation of beaks in finches are examples of

What process could explain how 2 fossils of the same animal is found on 2 different continents thousands of miles apart?

More offspring are produced than can survive. Competition for limited resources is the ___.

The basic divisions of the geologic time scale, from larger to smaller, are

James Hutton stated that geological processes have shaped Earth and said that Earth __________.

Lyell said that many ____ forces shaped the Earth and those same processes are happening in modern times.

Select THREE answers: Fossil evidence supports the idea that

Through ___________, all species, living or extinct, are linked on a single tree of life.

Common descent suggests that __________, living or extinct, come from a distant common ancestor.

Polygenic traits like height, eye color, and hair color have...

Fossilized evidence of Earth's first forms of life would consist of

Natural selection of polygenic traits in which the two extremes are favored over the average phenotypes is known as

In 1859, Darwin published his revolutionary scientific ideas in book entitled ______________.

Of the following types of evidence for evolution, which is considered the "newest" field to support change over time?

Which of the following did Darwin NOT CONCLUDE based on his trip aboard the H.M.S Beagle?

Speciation is an example of

Comparing stages of growth before birth to determine relatedness is called ______.

Several fish species go through no change for a long time, then several species appear in the fossil record. This shows

Natural selection directly acts on

Which of the following is a vestigial structure?

The Galapagos finches are an example of

An adaptation is a(n):

The picture below represents...

In Natural Selection, the _____________ "chooses" (selects) the most favorable trait for survival for a population.

The fossil record shows

Mass extinctions _______.

To compare the relative ages of rocks, scientists use a widespread and easily recognizable

What does the presence of similar DNA sequences in the genes in very different organisms imply?